2-Amino-5-fluoropyrimidin-4(3H)-one CAS 1683-86-9
| CAS No. | 1683-86-9 |
| Molecular Formula | C4H4FN3O |
| Molecular Weight | 129.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2-Amino-5-fluoropyrimidin-4(3H)-one (CAS 1683-86-9), molecular formula C4H4FN3O and molecular weight 129.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 2-Amino-5-fluoropyrimidin-4(3H)-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 129.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C4H4FN3O |
| Molecular Weight | 129.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 4-Amino-5-fluoropyrimidin-2-ol (CAS 117969-88-7)
- 2-Amino-6-fluoropyrimidin-4-ol (CAS 2253-05-6)
- 5-amino-3-fluoropyrazin-2(1H)-one (CAS 500148-37-8)
- (R)-3-Amino-1,1,1-trifluoropropan-2-ol (CAS 1217730-60-3)
- (S)-3-Amino-1,1,1-trifluoropropan-2-ol (CAS 160706-71-8)
- 2-Amino-3,3,3-trifluoro-1-propanol (CAS 162684-85-7)
- (R)-2-Amino-3,3,3-trifluoro-1-propanol (CAS 174075-83-3)
- (2S)-2-Amino-3,3,3-trifluoro-1-propanol (CAS 561323-79-3)
Recommended Standards
- 5-fluoro-4-imino-1,2,3,4-tetrahydropyrimidin-2-one (CAS 130256-61-0)
- 4-Fluoropyridine-2,6-diol (CAS 1803732-72-0)
- 5-Fluoro-6-hydroxypyridin-2(1H)-one (CAS 1296176-85-6)
- Emtricitabine Impurity 7 Potassium salt (CAS 124356-72-5)
- Oleandomycin Phosphate (CAS 7060-74-4)
- Potassium (E)-trifluoro(3-methoxyprop-1-en-1-yl)borate (CAS 1025825-38-0)
- 5-Bromo-4-methyl-N-phenylthiazol-2-amine (CAS 98946-86-2)
- 2-Cyano-6-fluorophenylboronic Acid (CAS 656235-44-8)
- 2-Benzyloxy-3-nitro-benzoic Acid-13C6 Benzyl Ester (CAS 1330265-54-7)
- Methyl 3-methylbenzo[b]thiophene-2-carboxylate (CAS 3133-81-1)
- 3-Amino-4-bromo-2-methylpyrazole (CAS 105675-85-2)
- 4-(3,5-Bis(trifluoromethyl)phenyl)-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (CAS 623578-58-5)
- 6-methoxybenzothiophene-2-sulfonyl chloride (CAS 96814-31-2)
- Tau Peptide (277-291) trifluoroacetate salt (CAS 330456-40-1)
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